Range Calculator

Range is the difference between the greatest and the lowest value in the given set of data. Finding range for a given

datainvolves three steps.

Step 1: Arranging the given data in ascending or descending order

Step 2: Find the largest number and smallest number in the data

Step 3: Finding the difference between them.

Example 1: Edward wrote 7 exams in Mathematics and secured 78, 91, 48, 68, 94, 66, 79 in his tests. Find the range of his

test scores.

Step 1: Arranging the data in ascending order

            48, 66, 68, 78, 79, 91, 94

Step 2: Finding the largest and smallest number

            Largest number = 94

            Smallest number = 48

Step 3: Finding the difference between the largest and smallest numbers.

            Range = 94 – 48 = 46

Hence the range of his test score is 46.

Example 2: Hourly wages of the employee are $5.50, $7.80, $18.20, $8.60, $12.40, $6.00, $9.30. Find the range of the above

data.

Step 1: Arranging the data in ascending order

            $5.50, $6.00, $7.80, $8.60, $9.30, $12.40, $18.20

Step 2: Finding the largest and smallest number

            Largest number = $18.20

            Smallest number = $5.50

Step 3: Finding the difference between largest and smallest number.

            Range = $18.20 - $5.50

                        = $12.70

Hence the range of the wages of employee is $12.70.

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